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  9. Q425

RRB Group D (Level-1 posts) 2022 · Question 425 of 598

Planets do not twinkle because:

  1. Athey scatter less light
  2. Bthey act as extended sources of lightCorrect
  3. Cthey act as point sources of light
  4. Dthey scatter more light

Answer: B. they act as extended sources of light

Explanation

Planets do not twinkle because they act as extended sources of light, so the variations due to atmospheric turbulence are averaged out.

Source: RRB Group D 2022 Prev. Yr. Paper (18 Aug 2022) (Shift 3) - Prepp · reliable-secondary

← Q424View full paper (598 questions)Q426 →

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